Everything he asked to have covered
It closes by admitting the list is not complete.
اللَّهُمَّ اغْفِرْ لِي خَطِيئَتِي وَجَهْلِي وَإِسْرَافِي فِي أَمْرِي، وَمَا أَنْتَ أَعْلَمُ بِهِ مِنِّي، اللَّهُمَّ اغْفِرْ لِي هَزْلِي وَجِدِّي وَخَطَاىَ وَعَمْدِي، وَكُلُّ ذَلِكَ عِنْدِي
Allāhumma-ghfir lī khaṭīʾatī wa jahlī wa isrāfī fī amrī, wa mā anta aʿlamu bihi minnī. Allāhumma-ghfir lī hazlī wa jiddī wa khaṭāya wa ʿamdī, wa kullu dhālika ʿindī
“O Allah, forgive me my error and my ignorance and my going too far in my affairs, and what You know better than I do. O Allah, forgive me my joking and my seriousness, my accidents and my deliberate acts. All of that is in me.”
Where this comes from
It works in pairs, and the pairs are opposites. Joking and serious. By accident and on purpose. Then the last clause stops pairing and just says: all of it, I have all of it.
The full narration
Narrated Abu Musa Al-Ash`ari:The Prophet (ﷺ) used to invoke Allah, saying, "Allahumma ighfirli khati'ati wa jahli wa israfi fi `Amri, wa ma anta a-'lamu bihi minni. Allahumma ighfirli hazali wa jiddi wa khata'i wa amdi, wa kullu dhalika 'indi
Source
Ṣaḥīḥ al-Bukhārī · 6399
- Agreed upon as authentic (al-Bukhārī / Muslim)